Paint or varnish remover.



UNITED STATES PATEN T OFFICE.

CARLETOIN ELLIS, OF WHITE PLAINS, NEW YORK, ASSIGNOB TO CHADELOID CHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION OF WEST VIRGINIA.

PAINT OP VARNISH BEMOVER.

Specification of Letters Patent.

Patented Jan. 21, 1913.

No Drawing. Application filed March 20, 1907, Serial No. 363,471. Renewed December 9, 1912. Serial R0. 735,846.

To all whom it may concern:

Be it known that I, CARLETON ELLIs, a citizen of the United States, and resident of White Plains, in the county of Westchester and State of New York, have made a certain new and useful Invention Relating to Paint or Varnish Removers, of which the following is a specification.

This invent-ion relates to paint or varnish removers and relates especially to removers comprising solvents of an aldehyde character.

Various solvents of an aldehyde character are desirable for use in finish removers, such for example, as acetaldehyde, propionaldehyde, butylaldehyde and valerianaldehyde among the alipathic hydrocarbons and benzaldehyde among the aromatic hydrocarbons and the corresponding condensation products, and also the derivatives of these aldehydes are in many cases desirable, a good example of such bodies being methylethylacetaldehyde. Various mixed aldehyde solvents are also available, as for instance, the neutral oxidation products of an aldehyde character prepared from tusel oil and also similar oxidation products from light oil of wood' tar, resin spirits and similar organic bodies which may in some instances be employed in connection with the corresponding acid products formed by still further oxidation. Suitable aldehyde solvent material of such character may be used in removers in connection with other loosening finish solvent material, that is, solvent material of a generally alcoholic character or action in removers, such as methyl, ethyl, propyl, butyl, allyl and other strict alcohols, preferably in their commercial forms, inclu ding denatured alcohol, or ketonic bodies, such .as methyl ethyl ketone, ethyl butyl ketone, oil of acetone, acetone and its condensation deriva ives, mesit-yl oxid, phorone, xylitone and isoxylitone. Suitable penetrating solvent material may also be employed, that is, solvents of a generally benzolic character or action in removers, such as benzol or its homologues, toluol, xylol, mesitylene, cumene, and so forth, and their commercial Iorms, such as commercial xylol and also the somewhat, analo ous petroleum.

hydrocarbons, such as napht a and benzin, as well as carbon bisulfid, turpentine, wood turpentine, carbon-tetrachlorid and other chlorinated solvents.

Although not necessary in alLcases, it is usually desirable to employ suitable sti ltening material in the remover, such as wood flour, starch, Whiting, infusorial earth and soapy or waxy bodies, such as ceresin, paraffin, bayberry tallow, beeswax, ozocerite, palm oil and nitrocellulose, many of which form efiective evaporation retarding films over the exposed surface of the remover when in use. All these ingredients are preferably thoroughly incorporated by agitation at the desired moderate heat, the waxy, soapy, or other soluble evaporation retarding bodies being preferably first dissolved in the more energetic solvents for such material, although this is not always necessary.

An illustrative remover of this character may comprise benzol 35 gallons, butylaldehyde 14 gallons, benzaldehyde 20 gallons,

alnylacetate 10 gallons, ceresin wax 10 pounds, wood flour 25 pounds and pulverized Peruvian bark waste pounds.

Other good illustrative removers for general purposes are as follows: benzol 10 parts, benzaldehyde 10 parts, xylitone 10 parts, paraffin or ceresin wax 1 part, and wood flour or similar stiffening material 5 arts. Also toluol 5 parts, henzin 5 parts, methylethylacetaldehyde 10 parts, denatured alcohol 5 parts, bayberry tallow 1 part and ozocerite 1 part.

Other illustrative removers may comprise benzaldehyde 16 parts, mesityl oxid 8 parts, acetone 4 parts, palm oil 2 parts and nitrocellulose 1 part. Also acetaldehyde 4: parts, valerianaldehyde 1 part and ceresin wax 1 part.

Another illustrative remover may comprise benzol 10 parts, propionaldehyde 10 parts and sodium stearate 1 part. Also 10 parts of benzol may be combined with one part of ceresin and incorporated with a mixture of benzaldehyde 4 parts, wood alcohol 3 parts, acetone 3 parts and sodium stearate or palmitate 1 part. In such case there is a mutual precipitating or gelatinizing action so that the wax is partially reduced to the colloidal or precipitated condition due to the reduction of solvent power of the benzol produced by the other solvents, and the henzol also similarly. reduces the solvent power of the other solvents mentioned for the soapy material.

This invention has been described in connection with a number of illustrative in gredients, formulas, proportions and processes, to the details of which disclosure the invention is not, of course, to be limited.

lVhat is claimed is l. The paint or varnish remover comprising approximately benzol 35 gallons, butylaldehyde 14 gallons, benzaldehyde 20 gallons, amylacetate '10 gallons, ceresin 10 pounds, wood flour 25 pounds and pulverized Peruvian bark waste 50 pounds.

2. The paint or varnish remover com prising approximately penetrating solvent material 35 gallons, but-ylaldehyde 14 gallons, benzaldehyde 20 gallons, amylacetate 10 gallons and stiffening material, including wax.

3. The paint or varnish remover comprising approximately penetrating solvent material 35 gallons, aldehyde solvent material 3&1 gallons and stifiening material, including wax.

4. The paint or varnish remover comprising penetrating solvent material, organic neutral aldehyde solvent material and stifi ening material, including wax.

5. The paint or varnish remover comprising organic finish solvent material including a considerable proportion of butylalde hyde with which Wax-like evaporation-retarding material has been incorporated to stiffen the remover.

6. The paint or varnish remover comprising solvent material including butylaldehyde with which wax-like evaporation retarding material has been incorporated.

7 The paint or varnish remover comprising penetrating solvent material, butylaldehyde and film-forming evaporation retarding stiffening material.

8. The paint or varnish remover comprising composite organic finish solvent mate rial including butylaldehyde and incorporated dissolved waxy stiifening material.

CARLETON ELLIS.

Witnesses:

JESSIE B. KAY, HARRY L. DUNCAN. 

